Question

Write down functional isomers of a carbonyl compound with molecular formula C₃H₆O. Which isomer will react faster with HCN and why? Explain the mechanism of the reaction also. Will the reaction lead to the completion with the conversion of whole reactant into product at reaction conditions? If a strong acid is added to the reaction mixture what will be the effect on concentration of the product and why?

Answer 1

•  Compound I will react faster with HCN due to less steric hinderance and electronic reasons than II.
•  No, It is a reversible reaction. Hence equilibrium is established.
• Addition of acid inhibits the reaction because the formation of –CN ions is prevented.